Thermo Fisher Scientific EcoScan pH/Ion 5 & 6 - Manual (Page 19)

Instruction Manual pH 5/6 & Ion 5/6
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3.5.2 Without Temperature probe (no ATC)
If no temperature probe is used, the meter compensates for pH response based on a
new calibrated temperature value manually set by you or at 25.0
o C (factory default).
1. Press MODE key to enter into Temperature mode until “ o C” shows in LCD.
2. Compare the displayed value to NIST certified thermometer or thermometer known
to be accurate (dipped into a constant temperature bath).
3. Press CAL key to enter temperature calibration mode. The LCD shows “CA”
momentarily and displayed reading flashes. Note that this displayed value should
either be 25.0
o C or last set temperature value.
4. Press and key (for Ion 6) or INC key (for pH 5/6) until the displays shows the
desired temperature. You can set any value from 0 to 100 o C.
5. To cancel or abort this operation, press CAL key. Note no new value will be stored
into its meter‘s non-volatile memory. To confirm calibration, press ENTER key. The
LCD displays “CO” momentarily, and the meter reverts to measurement mode.